"Pre-ordering it, can i atill play on my steam account?"yes, closer to the release you will be able to request to convert the pre-order to a steam key.

"Oh, and about the commentary, it's to explain the development?"If made, it will be something like how it is in Half-life 2. Areas that can be interacted with and will trigger a voice by one of the devs explaining things.

Really!?Even not a little percentage??Because you technicly use the steam store to spread your creation.It's not like the apps store from apple(for example) (apparently,apple take 35%of your profit from your app, if you create one)

So in fact evreyone can spread a game like this on the steam store?

Anon-> I don't want to make my interessting guy,but i was woried about this me too^^

Although I did not pay full price as some people did, I think it would be awesome if those that paid full price were able to receive the Penumbra OST as a thank you present from the developers.

Personally I am looking forward to the commentary mode and just want you dev's to know that I donated $14, split 50/50 then purchased the Penumbra collection for $5 and took advantage of the preorder discount for Amneisa.